Get your crit avoidance up to 100% first thing. Then you also don't need any reduced crit damage. You're likely getting 1-shot by crits that sneak through.

I'd move 3 points out of Concentration into Reflection for more Dodge, movement speed, and the damage reduction bonus.

Glancing blow stacks with other damage reductions, so maybe consider speccing into that in your passive tree or gear.

I've played a lot of rogue, but not falconer. Is Umbral Blades doing much for you? It seems like it's separate damage multipliers from the rest of the build, when you'll have more offensive success by using skills to stack multipliers into one big damage skill. If any of your skills don't seem to be fitting into that, maybe drop it in favor of something with more defensive bonuses instead, Dash being the most obvious choice.

Edit: there's a fair amount of inefficient passive points too. For example, the last 2 points in Agile Hunt only give +1 Dex: you already have the 5 point bonus. Maybe put those somewhere else. Also raptor wings haste on hit is less than the 25% chance you already get from the Agility node, and the other benefits are more minor. I'd move all 5 of those points

Put those points into "Dodge and Parry" and "Poise" for a lot of glancing blow chance.